baber/WOPTO huggingface dataset:
Patent GB-1069811-A (GB)
Title: Improvements in or relating to rotary vacuum pumps
Inventor: SADLER PETER
IPC: F04C28/24
Filed: 1964-01-30
Abstract: 1,069,811. Rotary vacuum pumps. GENEVAC Ltd. April 26, 1965 [Jan.30, 1964], No. 4093/64. Heading F1F. [Also in Division F2] An oil-sealed rotary vacuum pump 10 mounted in an oil storage reservoir 11 and including an oil pump 15 driven with the vacuum pump which supplies oil to the pumping chamber through an oil feed line 16, includes in the pump inlet line 20 a valve seat 21 co-operable with a resiliently loaded valve member 22 located on the pump side of the seat and held open when the vacuum pump is operating by oil pressure supplied to a bellows 25 (or piston) through a branch line 26. Oil passing through the line 16 passes through a restriction 27, a catch-pot 17 with its rim slightly above the oil level 12 and a needle valve 19. In the event of stoppage of the vacuum pump the oil pump also stops with consequent loss of pressure in the lines 16, 26. The valve 22 then closes to prevent the vacuum system being contaminated with oil and allows only the small amount of oil in the catchpot 17 to reach the pumping chamber. The loading of the spring 23 is such that on re-starting the vacuum pump the valve 22 does not open until the pumping chamber is sufficiently exhausted.
Patent GB-755036-A (GB)
Title: Improvements in or relating to cyclic nitrogen compounds
IPC: C07D253/07
Filed: 1954-02-11
Abstract: The invention comprises 3-amino-as-triazines having the formula <FORM:0755036/IV(a)/1> in which R and R1 may be separate or joined to complete a second ring, each of R and R1, when separate, representing a hydrogen atom or a hydroxy or alkyl group, and R and R1 when joined, representing a polymethylene or substituted polymethylene radical.  Such compounds are obtained by reacting aminoguanidine or a salt thereof with a 1 : 2-carbonyl compound of the formula R.CO.CO.R1.  Suitable 1,2-dicarbonyl compounds are glyoxal and monoalkyl glyoxals such as methyl glyoxal (pyruvic aldehyde) and ethyl-, propyl, isopropyl-, butyl-, isobutyl-, tertiary butyl, amyl and hexy.-glyoxal, 1,2-diketones such as 2,3-butanedione (diacetyl), 2,3-pentanedione, 2,3- or 3,4-hexanedione, 3,4-heptanedione, 2,3-, 3,4- or 4,5-octanedione, 5,6-decanedione, 2,5-dimethyl-3,4-hexanedione, 5 - methyl - 3,4 - hexanedione and cyclohexanedione, and a -oxocarboxylic and a -dicarboxylic acids such as pyruvic acid, glyoxylic acid and oxalic acid.  When an unsymmetrical, e.g. an alkyl glyoxal, is reacted is it not known whether the product is 5- or 6-substituted or a mixture of both, and this is indicated by describing the products as 3-amino - 5(6) - substituted - as-triazines.  In Example (1) 3-amino-as-triazine is prepared by reacting glyoxal and aminoguanidine in alkaline medium. Similarly obtained are (2) 3-amino-5(6) - methyl - as - triazine, (3) 3 - amino - 5,6 - dimethyl-as-triazine and (4) 3-amino-5,6,7,8-tetrahydro-1,2,4-benzotriazine.  A list is given of further derivatives containing 5- and/or 6-substituents selected from methyl, ethyl, propyl, isopropyl, butyl, isobutyl, amyl, hexyl and hydroxy radicals.  The products are useful as intermediates.  By reaction with p-nitrophenylisocyanate there are obtained 1-(4-nitrophenyl)-3-(3-as-triazinyl) urea, the corresponding compounds substituted in the triazine nucleus by methyl radicals, and 1 - (4 - nitrophenyl) - 3 - [3 - (5,6,7,8 - tetrahydro-1,2,4-benzotriazinyl)] urea, which are effective against coccidiosis in poultry.
Patent GB-164433-A (GB)
Title: Manufacture of negative plates for electric accumulators
IPC: H01M4/02
Filed: 1920-02-10
Abstract: 164,433. Pouchain, A. Feb. 10, 1920. Electrodes. - A negative electrode for secondary batteries consists of a non- metallic plate 1 of a material not attacked by sulphuric acid and having a plate 2 of amalgamated zinc secured to each side. The plate 1 may be made of celluloid, shellac, or the like. The three plates are held together by any suitable means. In one example, the celluloid plate is mterposed between the zinc plates in a plastic condition, pressure being applied to press the celluloid through perforations in the zinc plates to form keys or rivets. The perforations may be enlarged on the outer side, or grooves 4 made between adjacent perforations to enable the celluloid to form ties to bind the whole securely together.
Patent GB-273990-A (GB)
Title: Improvements in boiler furnaces
IPC: F23C99/00
Filed: 1927-02-14
Abstract: 273,990. Wood, W. R. Feb. 14, 1927. Pulverulent-fuel furnaces. - In a water-tube boiler furnace of the kind in which the combustion chamber is enclosed by water tubes, fuel is introduced into the lower part of the combustion chamber and air for combustion is introduced below the fuel in streams which impinge upon each other so as to produce turbulence and an ascending helical current. Fuel with carrying air is introduced through jets u, Fig. 1, directed tangentically to a circle having its centre on the axial line of the combustion chamber while air enters through ducts t arranged similarly to the fuel jets. The sides of the combustion chamber are formed by tubes h connected to upper and lower headers i, k in turn connected to upper and lower drums a, b connected by tubes o, p to horizontal headers m, n to which the tubes l forming the front wall of the combustion chamber are attached. The rear wall is formed by tubes c backed by a baffle d above which the gases from the combustion chamber pass and thence over down comer tubes f to the flue e containing a superheater q and air heater from which air passes through a duct s to the ducts t. Specifications 257,240 and 260,994 are referred to.
Patent GB-1450864-A (GB)
Title: Process for pulverizing coal to ulttrafine size
IPC: C10L5/00
Filed: 1974-01-29
Abstract: 1450864 Comminuting coal GILBERT ASSOCIATES Inc 29 Jan 1974 [29 Jan 1973] 04203/74 Heading B2A  A process of pulverizing coal to ultrafine size (a few microns 1-10 microns (Á)) comprises conveying coal through a pulverizer with an inert gas, separating the pulverized ultrafine coal from the gas cooling and recycling the gas through the pulverizer, producing make up gas by scrubbing boiler flue gases to remove particulate matter and CO 2  leaving nitrogen gas and introducing the make-up inert gas in the pulverizer. In the system described coal is dumped into a primary (1") crusher, passed through a magnetic separator 6 and dried with inert flue gases at 5. Controlled feed from bunkers - 7 delivers coal to a coarse (74Á) crusher 9 which receives inert gas via a pipe 24. This mill may be a bowl-roller or ball mill. Pyrites is discharged via pipe 10. The coal from the pulverizer 9 passes through a cyclone 11 and through a fine mill 12 (a high speed impact mill) where it is reduced to a size 1-10 Á. Inorganic ash and pyrites are removed via a pipe 13. Micron size coal dust is carried via pipe 16 to bag filters 17 and thence discharged for use or storage.  The inert gas used 99.5% nitrogen 0.5% CO 2  Gas from the filter 19 is cooled at 19 condensate being removed at 20 Compressed at 21 further condensate being removed at 22. Make-up gas is derived from the gas in the dryers 5 and is passed through a water scrubber 42 to remove partuculate material an SO 2  removing alkaline scrubber 47 and a monoethanolamine scrubber 32 for removal of CO 2 . The MEA is recycled by use of a stripping tower 37. The 99.5% nitrogen is discharged along pipe 33, into pipe 24 and thence back into the system.  Steam is produced in a boiler 41 which also supplies the flue gas via pipe 62 to the dryer 5. The steam is used for MEA regeneration. Pyrites is burned in the boiler. The mills are water jacketted, the system including a cooling water supply 56, return system 60 and heat exchanger 19, and a cooling tower 57.
Patent GB-307457-A (GB)
Title: Catalytic ammonia synthesis
IPC: C01C1/04
Filed: 1929-02-08
Abstract: 307,457. Selden Co., (Assignees of Jaeger, A. 0.). March 8, 1928, [Convention date]. Catalytic agents; ammonia, catalytic production of from nitrogen and hydrogen.-Catalysts for the synthesis of ammonia comprise two-component zeolites or derivatives thereof or acid-leached base exchange bodies of any kind. The catalytically active elements may be chemically combined with the base-exchange body in exchangeable or non- exchangeable form or physically admixed therewith during or after their formation. Twocomponent zeolites are obtained by reaction between metal salts and silicates or metallates and silicates, the final product being alkaline to litmus. They may be used either with or without leaching with dilute acids to remove part or all of the bases therein. Other base-exchange bodies which according to the invention are used only after acid leaching are the multicomponent zeolites described in Specification 279,466 and the non-siliceous bodies described in Specification 286,212. The base-exchange bodies may be combined with anions forming salt-like bodies. Diluents and carriers may be incorporated at any stage in their preparation. Details of these modifications are similar to those described in the two Specifications mentioned. Stabilizers consisting of alkali metal, alkaline-earth metal, and strongly basic metal compounds, and stabilizer promoters consisting of metallic compounds having general catalytic activity but not specific activity for this reaction may be added. Iron is the preferred catalytically active element. The contact masses are preferably pretreated with hydrogen, nitrogen, or ammonia, before use. The Specification as open to inspection under Sect. 91 (3) (a.) includes also the use of unleached multicomponent zeolites and non-siliceous base exchange bodies. This subject-matter does not appear in the Specification as accepted.
Patent GB-699918-A (GB)
Title: A new or improved blotter
IPC: B43L17/04
Filed: 1951-02-21
Abstract: 699,918. Blotting-appliances. UNISON, Ltd., and BEERMAN, H. Feb. 21, 1952 [Feb. 21, 1951], No. 4247/51. Class 146 (iii). A blotter is formed from two superimposed layers 1, 2 of cardboard or like flexible material connected together at their ends 7, one layer 2 having outwardly curved side edges and inwardly directed scorings 3 defining side portions 4 which when the ends of both layers are pressed towards one another may be bent inwardly on the scorings to impart an outwardly curved shape to both layers, the layer 2 then forming a handle by which the blotter is held and rocked, and the surface of the other layer 1 having a strip or piece of blotting paper 8 disposed thereon. The parts 1, 2 may be formed in one piece, Fig. 2, with an extension 6 (or according to the Provisional Specification a number of tags) on the part 2 to be secured by adhesive to the free end of the part 1, or part 2 may have extensions 6 at both ends, part 1 being separately formed. Finger holes 9 enable the sides 4 to be pulled out for flattening the blotter when required. The blotting paper 8 may be fixed by adhesive or by tabs 11, Fig. 5, inserted in slots 10 at the ends of the part 1.
Patent GB-328974-A (GB)
Title: Improvements in or relating to magnet cores for use in loading coils and the like
IPC: H01F1/14
Filed: 1929-02-08
Abstract: 328,974. Automatic Telephone Manufacturing Co., Ltd., and Roseby, P. N. Feb. 8, 1929. Coating.-Nickel iron wire. for use in magnetic cores, is treated with phosphoric acid at about 300‹ F.
Patent GB-105234-A (GB)
Title: Improvements connected with the Unwinding or Delivery of Threads, Filaments and the like from Bobbins, Spools and the like.
Inventor: LIPPS EMORY JOHN
IPC: B65H59/06
Filed: 1917-03-26
Abstract: 105,234. Lipps, E. J. March 21, 1916, [Convention date]. C r e e l arrange ments; spindle apparatus.-Relates to the unwinding or delivery of threads &c. from supply bobbins on fixed or rotating spindles. Between the delivery bobbin and the receiving-bobbin and preferably arranged as a cap on the end of the delivery bobbin a, is a disk or member f having a rim or edge tapering towards the delivery bobbin and provided around its centre with a strip j of plush or other pile fabric &c. to engage with the yarn as it is withdrawn endways from the bobbin. Specification 105,232 is referred to.
Patent GB-688962-A (GB)
Title: Improvements in and relating to the welding of chains
IPC: B21L3/02
Filed: 1949-02-17
Abstract: 688,962. Welding chains. ESSER, P., (trading as MEYER, ROTH & PASTOR). Feb. 17, 1949 [Oct. 1, 1948], No. 4376/49. Class 83 (iv). In a method of welding chains, especially hard chains, in an electric welding machine where the normal cooling period is not sufficient to produce a stress-free structure the links are subjected to pressure over the entire length and periphery of the weld and thermally influenced region while at the same time being cooled for a period longer than normal, preferably artificially. In the operation cycle the heating period which may include a rest period is reduced, for example, by modifying the electrode voltage, and the swaging jaws are maintained in position for a period increased by the reduction in the heating period. The cooling period is not interrupted by a rest period. The swaging jaws are applied after the electrodes have been removed, while the swaging and upsetting jaws are not removed until the link has sufficiently cooled. In an embodiment the swaging jaws each consist of a holder 20 provided with a central partition 21 and an insert 23 which engages the welded area of the link. Cooling fluid, e.g. water or oil, is directed into one side of the holder 20 at one end to flow around the partition 21 and the insert extension 24 before being discharged from the other side of the holder 20. The tools may be cooled according to a time temperature curve for the metal and a thermostat or throttle valve may be employed. The swaging tools may be naturally cooled by being of large dimensions, may be cooled in the rest position between working steps or the link may be cooled by a stream of coolant.
Patent GB-1594892-A (GB)
Title: Semiconductor devices and the provision of envelopes therefor
IPC: H01L23/31
Filed: 1978-02-03
Abstract: In a semiconductor device comprising a semiconductor element, terminal conductors, which are in electrical connection with contact pads on the semiconductor element and an envelope of synthetic resin, the envelope is formed from an encapsulation, preferably an epoxy resin, protecting the semiconductor element and  the electrical connections against ambient influences, and an envelope part of foamed thermoplastic synthetic   resin which determines the outer shape and is provided around said encapsulation by means of injection moulding.
Patent GB-457690-A (GB)
Title: Apparatus for the automatic stopping of the driving mechanism of gramophones and the like
IPC: G11B17/02
Filed: 1936-02-14
Abstract: 457,690. Gramophones. BOSCH AKT.- GES., R., 4, Militõrstrasse, Stuttgart, Germany. Feb. 14, 1936, No. 4470. Convention date, June 24, 1935. [Class 40 (ii)] An automatic stopping - mechanism for gramophones and the like, in which a controlling member is reciprocable horizontally and is also displaceable vertically, and in which at the end of the playing the said member has a greater horizontal displacement than that occurring during playing, is characterized in that the controlling member consists of a lever which directly effects the stopping of the machine by dropping into a recess in a support on which the lever bears. An embodiment of the invention is described and shown, which is identical with the mechanism described in Specification 457,691. The Figure shows a modified method of mounting the same stopping- mechanism, in which a frame 30 which supports the driving motor 33 has brackets 107, 109 which correspond to the supporting-frame 7 and the support 9 of the mechanism shown in Specification 457,691. The stopping-device may be modified by providing directly on the controlling lever contacts which are separated on the dropping of the lever.
Patent GB-130560-A (GB)
Title: Improvements in or relating to Buttons.
Inventor: WHETTON EDWARD
IPC: A44B1/18
Filed: 1919-02-24
Abstract: 130,560. Whetton, E., Sparrow, W. S., Whetton, E. P., and Whetton, S. C. Feb. 24, 1919. Buttons.-In buttons of the kind having the attachment loop formed from a piece of wire bent at its middle to form a loop to project through a slot in the back plate of the button, the wire is prevented from moving by lugs c pressed out of the backing a, and the loop e is held at rightangles to the back by the ends f of the wire being bent at right-angles in opposite directions and lying against the inner face of the backing. Instead of by lugs c, the looped wire d may be neld by means of a disk k, Fig. 4, of cardboard metal, celluloid, &c. To facilitate sewing, the back plate is formed with needle-guiding grooves g at right-angles to and passing through the loop e.
Patent GB-1450263-A (GB)
Title: Method of applying an edging strip and a device for carrying out  the method splice for high voltage cable and method of forming same
IPC: E06B7/23
Filed: 1974-01-31
Abstract: 1450263 Finishing edges of sheet material SKODA OBOROVY PODNIK 31 Jan 1974 [8 Feb 1973] 04645/74 Heading B5K An edge sealing strip 1, made of elastic material, e.g. rubber, and provided with a longitudinal groove 17, is applied and adhered to the edge of a structural member 2 by (a) fastening one end of the strip 1 within or at an end of a helical groove 13 of a mandrel 3, (b) winding the strip, with prestressing, into the groove 13 in such a way that the open part of the groove 17 is directed outwardly from the groove 13, (c) fastening the other end of the strip to the mandrel, (d) mechanically removing e.g. by a brush, a separating powder layer from the groove 17, (c) applying an adhesive into the groove 17, (f) positioning the mandrel 3, after partial drying of the adhesive, so that the edge to be sealed forms a tangent to the helix formed by the strip, (g) releasing one end of the strip and pressing it on to the edge, and (h) rolling the mandrel 3 along the edge to transfer the whole strip, inclusive of its second end, which is also released, on to the edge. As shown, the mandrel 3 is provided with hemispherical handles 4 which can be clamped between a fixed pin 18 and a rotatable member 19 secured to a crank 7. A slide 6 is slidable on a rod 12 and is provided with a hole 11 to guide the strip during its winding on to the mandrel 3. A guide pin 9 engages in the groove 13. Radial clamping holes 14 are provided for securing one end of the strip to the groove 13 and a lever 8 for the other end.
Patent GB-1090893-A (GB)
Title: Filaments,threads and fibres from polyamides
Inventor: BODESHEIM FERDINAND
IPC: C08L77/00
Filed: 1965-02-03
Abstract: Polyamides for melt-spinning into filaments are prepared from an aminocarboxylic acid, a lactam or a salt of a diamine and a dicarboxylic acid together with 0.1 to 25% (by weight of the total reaction mixture) of a mixture of equivalent quantities of an acid HOOC-(CH2)z-COOH and a diamine H.XN-R-NH-(CH2)y-SO3M wherein X is H or -(CH2)y-SO3M; R is a C2- 12 alkylene or saturated cyclic hydrocarbon radical; M is H or alkali metal; y is 4 to 6; and z is 4 to 9. The sulphonated diamines may be obtained (as inner ammonium salts) by reacting the appropriate diamine and alkane sulphone.
Patent GB-608090-A (GB)
Title: Improvements in couplings for tubes and the like hollow bodies
IPC: F16B7/04
Filed: 1946-02-15
Abstract: 608,090. Tube couplings. RAYLOR, W. Feb. 15, 1946, No. 4750. [Class 99 (i)] In a tube coupling in which semi-cylindrical members 1, 2 are pressed apart to grip aligned tubes, into which they are inserted, by a screw 5 in threaded engagement with the member 1 and passing freely through the member 2, but secured to it such as by upsetting at 4, the member 1 has a pin 8 engaging a hole 9 in the member so as to keep the members parallel to facilitate assembly.
Patent GB-563397-A (GB)
Title: Improvements relating to work piece steadies, drill guides, thread or wire guides and the like
IPC: B23B49/02
Filed: 1943-03-25
Abstract: 563,397. Thread guides for textile machines. WHEWAY, F. O. March 25, 1943, No. 4859. Addition to 540,959. [Class 120 (ii)] [Also in Groups XXII and XXXIV] Steady rests for lathes &c. drill guides for jigs, thread or wire guides for textile or wire working machines &c. comprise at least two pieces a, Fig. 2, of titanium carbide or like hard material shaped to form a bore b entirely surrounded by the pieces which are enclosed in a holder C of fusible metal such as zinc, lead, or brass or other thermosetting, thermoplastic, or analogous material. Plaster of Paris, cement or like material may be used. In a modification, seven strips a, Fig. 3, of the hard material are assembled to enclose the bore h are enclosed in fusible metal &e. C, and the whole is assembled in an outer metal casing e flanged at i and socketed at f to receive a closure washer g that may be of hard metal. When used as a thread or wire guide the ends of the bore may be closed.
Patent GB-1500911-A (GB)
Title: Dental plaque disclosing agent
IPC: G01N33/52
Filed: 1975-01-17
Abstract: 1500911 Composition for disclosing dental plaque S L SELWYN 17 Jan 1975 [1 Feb 1974 24 Oct 1974] 04892/75 and 46130/74 Heading G1B Dental plaque on the teeth is disclosed by a process wherein there is taken into the mouth of the individual the dye amaranth, the dye being in the form of an aqueous solution as such, or applied immediately before use to a swab, or forming a component of an ingestible composition other than an aqueous solution from which composition the amaranth enters into solution on contact with saliva, the solution when in contact with the teeth staining any plaque on the teeth. The amaranth may be taken into the mouth in the form of a tablet, a pastil or in gel form In a preferred process, a solution containing amaranth 0.5 to 10% in water is dispensed under pressure to a point under the tongue. A mouthwash composition for use in the invention comprises amaranth, propylene glycol, peppermint oil, a mixture of the methyl, ethyl and propyl esters of para hydroxybenzoic acid, butyl hydroxybenzoate and water, and a gel composition is formed by adding to the mouthwash composition sodium carboxymethylcellulose or polyvinylpyrrolidone. A tablet for use in the invention comprises amaranth, peppermint oil, Syloid (T.T.M.), sodium saccharin, sodium bicarbonate, mannitol, calcium stearate.
Patent GB-306144-A (GB)
Title: Improvements in induction furnaces
IPC: H05B6/22
Filed: 1929-02-14
Abstract: 306,144. Bunet, P. E., and Acieries de Gennevilliers. Feb. 17, 1928, [Convention date]. Induction furnaces.-The primary C is provided with cooling means and comprises a single turn or a small number of turns closely surrounding the charge or working circuit B and fed from an iron cored transformer D, E, F forming one unit with the furnace. No insulation is arranged between the crucible B and the coil C. In Fig. 3 a water circulating gutter is arranged at the top of the coil. In a modification, the coil comprises concentric turns connected in parallel and separated over the main portion of their depth by insulation. In Fig. 4 the coil is provided with fins and is arranged in a casing H through which air is circulated. The primary E of the iron cored transformer is provided with tappings for connection to the current supply and a condenser is arranged across the ends of this coil. The core F may be extended to surround the crucible. The furnace may be adapted for tilting. Specifications 235,921, 291,455, and 291,456 are referred to.
Patent GB-1375151-A (GB)
IPC: D01F6/62
Filed: 1973-02-01
Abstract: 1375151 Stretching polyester filaments BARMAG BARMER MASCHINENFABRIK AG 1 Feb 1973 [1 Feb 1972] 4997/73 Heading B5B Polyester filaments are melt-spun and given a preliminary draw by taking them off at a rate in excess of 3000 m./minute, cooled, drawn with a draw ratio of from 1 : 1À8 to 1 : 1À3 and then packaged. During the second drawing stage the filaments are exposed to heat from only one heating unit. Preferably the second drawing step is performed in an atmosphere of steam. The process may be continuous or may be interrupted after the cooling step.